iio: ad7768-1: Convert to use sysfs_emit_at() API
Commit Message
From: ye xingchen <ye.xingchen@zte.com.cn>
Follow the advice of the Documentation/filesystems/sysfs.rst and show()
should only use sysfs_emit() or sysfs_emit_at() when formatting the
value to be returned to user space.
Signed-off-by: ye xingchen <ye.xingchen@zte.com.cn>
---
drivers/iio/adc/ad7768-1.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
@@ -346,7 +346,7 @@ static ssize_t ad7768_sampling_freq_avail(struct device *dev,
for (i = 0; i < ARRAY_SIZE(ad7768_clk_config); i++) {
freq = DIV_ROUND_CLOSEST(st->mclk_freq,
ad7768_clk_config[i].clk_div);
- len += scnprintf(buf + len, PAGE_SIZE - len, "%d ", freq);
+ len += sysfs_emit_at(buf, len, "%d ", freq);
}
buf[len - 1] = '\n';